Enrichment of mixed cultures capable of aerobic degradation of 1,2-dibromoethane.

Applied and Environmental Microbiology
L M Freitas dos SantosA G Livingston

Abstract

1,2-dibromoethane (DBE) is a common environmental contaminant; it is potentially carcinogenic and has been detected in soil and groundwater supplies. Most of the biodegradation studies to date have been performed under anaerobic conditions or in the context of soil remediation, where the pollutant concentration was in the parts per billion range. In this work a mixed bacterial culture capable of complete aerobic mineralization of concentrations of DBE up to 1 g liter(-1) under well-controlled laboratory conditions was enriched. In order to verify biodegradation, formation of biodegradation products as well as the disappearance of DBE from the biological medium were measured. Complete mineralization was verified by measuring stoichiometric release of the biodegradation products. This mixed culture was found to be capable of degrading other halogenated compounds, including bromoethanol, the degradation of which has not been reported previously.

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Citations

Jun 3, 2005·Journal of Environmental Monitoring : JEM·Aditi MoharikarRakesh Kumar
May 30, 2013·Applied Microbiology and Biotechnology·Kyunghwa BaekKlaus Nüsslein
Mar 27, 1999·Journal of Bacteriology·G J PoelarendsD B Janssen

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